I am in the process of getting the old sensor out so I can grab a part number off of it. In the process I found that the entire floor of the car is soaking wet! No wonder the sensor is shorting out! I have water dripping out of the grommets and there is a small puddle underneath the car at one of the grommets in the rear. What do I do? Where do I start? idparts sells the grommets for underneath the car but is that likely the issue?